Hydrodeoxygenation catalyst

a technology of hydrogenation catalyst and catalyst, which is applied in the direction of catalyst activation/preparation, metal/metal-oxide/metal-hydroxide catalyst, and hydrocarbon from oxygen organic compounds, etc., and can solve problems such as contamination of downstream products

Inactive Publication Date: 2014-01-30
CLARIANT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]A hydrodeoxygenation catalyst comprises a metal catalyst and a hydrothermally stable support with tunable acid density and strength. The metal catalyst is selected from platinum, palladium, ruthenium, rhenium, rhodium, osmium, iridium, nickel, cobalt, molybdenum, copper, tin, or mixtures thereof. The support is a promoted-zirconium material.

Problems solved by technology

Moreover, the co-feed of sulfur compounds to maintain the activity of the conventional hydrotreating catalysts causes the contamination of downstream product (Chem. Rev., 110, 2010, 3552).

Method used

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Examples

Experimental program
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Effect test

example 1

Preparation of Niobium Promoted Zirconium Support

[0061]Chromium promoted zirconium support was prepared according to U.S. Publication No. 2011 / 0301021.

[0062]Ammonia niobate oxalate (7.6 g) was measured and dissolved into deionized water (20-30 mL) with slight heat. The solution was dropped into ZrCr support (30 g) with vigorous vibration until the materials were completely wet. The resulting material was dried at 110° C. for 1 h and followed by calcinations at 450° C. for 2 h with a heating ramp rate of 10° C. / min. This yielded about 33.6 g Nb—ZrCr support.

example 2

Preparation of Molybdenum Promoted Zirconium Support

[0063]Mo—ZrCr support was made in the same manner as in Example 1, except ammonium molybdate tetrahydrate ((NH4)6Mo7O24.4H2O, 6.12 g) was used in place of the ammonia niobate oxalate. The resulting wet material was dried at 110° C. for 1 h and followed by calcinations at 650° C. for 2 h with a heating ramp rate of 10° C. / min.

example 3

Preparation o Tungsten Promoted Zirconium Support

[0064]W—ZrCr support was made in the same manner as in Example 1, except ammonia metatungstate hydrate ((NH4)6H2W12O40.xH2O, 4.5 g) was used in place of the ammonia niobate oxalate. The resulting wet material was dried at 110° C. for 1 h and followed by calcinations at 650° C. for 2 h with a heating ramp rate of 10° C. / min.

Characterization of the Promoted Supports

[0065]The XRD patterns (Cu kα) of the promoted ZrCr supports in FIG. 1 show that Nb and W were well dispersed into ZrCr support, thereof XRD amorphous, while Mo oxides particles were observed. The XRD patterns of a tetragonal zirconium oxide and the ZrCr support were also included for comparison. Cr is a textural promoter to stabilize tetragonal phase of ZrO2.

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Abstract

A hydrodeoxygenation catalyst comprises a metal catalyst, an acid promoter, and a support. The metal catalyst is selected from platinum, palladium, ruthenium, rhenium rhodium, osmium, iridium, nickel, cobalt, molybdenum, copper, tin, or mixtures thereof. The support is a promoted-zirconium material including texture promoters and acid promoters. The hydrodeoxygenation catalyst may be used for hydrodeoxygenation (HDO) of sugar or sugar alcohol in an aqueous solution. In one embodiment the HDO catalyst may be used for HDO of fatty acids such as fatty acid methyl esters (FAME), triglycerols (in plant oil and animal fat), pyrolysis oil, or lignin. The hydrodeoxygenation catalyst for fatty acid process does not require the use of an acid promoter, it is optional.

Description

BACKGROUND[0001]Compared to crude oil, biomass feedstocks have intrinsically high oxygen contents ranging from 6% for nature oil and fats to more than 50% for carbonhydrates. Conversion of these feedstocks to high value chemicals or “drop in” fuels without excessive sacrifice of carbon by decarboxylation / decarbonylation requires hydrodeoxygenation (HDO) as a mandatory process step. The HDO process is similar to the hydrotreating process which has been widely applied in petroleum refinery. It removes oxygen as “impurity” in the form of water by consumption of hydrogen.[0002]Renewable diesels from HDO of plant oil and animal fats have been commercially produced by using conventional NiMo- and CoMo-based hydrotreating catalysts on zeolites or silica-alumina. The success can be attributed to the relatively low oxygen content, less impurities in the feedstocks, and importantly, the process design and optimization (U.S. Pat. No. 7,955,401, U.S. Publication No. 2010 / 0331586). These convent...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B01J23/755B01J23/44B01J23/46B01J23/42B01J23/24B01J23/72B01J23/20B01J23/10B01J23/32B01J23/75C07C29/132C07C51/00C07C45/00C07D475/00C07C1/22
CPCB01J21/066B01J23/14B01J23/28B01J23/36B01J23/42B01J23/44B01J23/462B01J23/464B01J23/466B01J23/468B01J23/63B01J23/6482B01J23/6484B01J23/6486B01J23/6525B01J23/6527B01J23/6562B01J23/6567B01J23/72B01J23/75B01J23/755B01J23/83B01J23/8472B01J23/8474B01J23/8476B01J23/882B01J23/883B01J23/888B01J23/8892B01J23/8896B01J35/002B01J37/0009B01J37/0207B01J37/0242C10G3/47C10G3/48C10G3/52C10G2300/1011C10G2300/1014C10G2300/1018C10L1/04Y02P30/20
Inventor SHEN, WENQINLIU, ALGUOTURBEVILLE, WAYNE
Owner CLARIANT CORP
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